High Activity Hydrogen Evolution Catalysis by Uniquely Designed Amorphous/Metal Interface of Core–shell Phosphosulfide/N-Doped CNTs

Dong Jun Li, Joonhee Kang, Ho Jin Lee, Dong Sung Choi, Sung Hwan Koo, Byungchan Han, Sang Ouk Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A cost effective hydrogen evolution reaction (HER) catalyst that does not use precious metallic elements is a crucial demand for environment-benign energy production. The family of earth-abundant transition metal compounds of nitrides, carbides, chalcogenides, and phosphides is one of the promising candidates for such a purpose, particularly in acidic conditions. However, its catalytic performance is still needed to be enhanced through novel material designs and crystalline engineering. Herein, a chemically and electronically coupled transition metal phosphosulfide/N-doped carbon nanotubes (NCNT) hybrid electrocatalyst is fabricated via a two-step synthesis. The uniquely designed synthesis leads to the material morphology featuring a core–shell structure, in which the crystalline metal phosphide core is surrounded by an amorphous phosphosulfide nanoshell. Notably, due to the favorable modification of chemical composition and surface properties, core–shell CoP@PS/NCNT exhibits the noticeable HER activity of approximately −80 mV @ −10 mA cm−2 with excellent durability, which is one of the highest active nonnoble metal electrocatalysts ever reported thus far.

Original languageEnglish
Article number1702806
JournalAdvanced Energy Materials
Volume8
Issue number13
DOIs
Publication statusPublished - 2018 May 4

Fingerprint

Carbon Nanotubes
Electrocatalysts
Catalysis
Hydrogen
Carbon nanotubes
Metals
Transition metal compounds
Nanoshells
Crystalline materials
Chalcogenides
Nitrides
Chemical elements
Surface properties
Transition metals
Carbides
Durability
Earth (planet)
Catalysts
Chemical analysis
Costs

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Li, Dong Jun ; Kang, Joonhee ; Lee, Ho Jin ; Choi, Dong Sung ; Koo, Sung Hwan ; Han, Byungchan ; Kim, Sang Ouk. / High Activity Hydrogen Evolution Catalysis by Uniquely Designed Amorphous/Metal Interface of Core–shell Phosphosulfide/N-Doped CNTs. In: Advanced Energy Materials. 2018 ; Vol. 8, No. 13.
@article{63c08524937f45af97f8470032e6ef67,
title = "High Activity Hydrogen Evolution Catalysis by Uniquely Designed Amorphous/Metal Interface of Core–shell Phosphosulfide/N-Doped CNTs",
abstract = "A cost effective hydrogen evolution reaction (HER) catalyst that does not use precious metallic elements is a crucial demand for environment-benign energy production. The family of earth-abundant transition metal compounds of nitrides, carbides, chalcogenides, and phosphides is one of the promising candidates for such a purpose, particularly in acidic conditions. However, its catalytic performance is still needed to be enhanced through novel material designs and crystalline engineering. Herein, a chemically and electronically coupled transition metal phosphosulfide/N-doped carbon nanotubes (NCNT) hybrid electrocatalyst is fabricated via a two-step synthesis. The uniquely designed synthesis leads to the material morphology featuring a core–shell structure, in which the crystalline metal phosphide core is surrounded by an amorphous phosphosulfide nanoshell. Notably, due to the favorable modification of chemical composition and surface properties, core–shell CoP@PS/NCNT exhibits the noticeable HER activity of approximately −80 mV @ −10 mA cm−2 with excellent durability, which is one of the highest active nonnoble metal electrocatalysts ever reported thus far.",
author = "Li, {Dong Jun} and Joonhee Kang and Lee, {Ho Jin} and Choi, {Dong Sung} and Koo, {Sung Hwan} and Byungchan Han and Kim, {Sang Ouk}",
year = "2018",
month = "5",
day = "4",
doi = "10.1002/aenm.201702806",
language = "English",
volume = "8",
journal = "Advanced Energy Materials",
issn = "1614-6832",
publisher = "Wiley-VCH Verlag",
number = "13",

}

High Activity Hydrogen Evolution Catalysis by Uniquely Designed Amorphous/Metal Interface of Core–shell Phosphosulfide/N-Doped CNTs. / Li, Dong Jun; Kang, Joonhee; Lee, Ho Jin; Choi, Dong Sung; Koo, Sung Hwan; Han, Byungchan; Kim, Sang Ouk.

In: Advanced Energy Materials, Vol. 8, No. 13, 1702806, 04.05.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High Activity Hydrogen Evolution Catalysis by Uniquely Designed Amorphous/Metal Interface of Core–shell Phosphosulfide/N-Doped CNTs

AU - Li, Dong Jun

AU - Kang, Joonhee

AU - Lee, Ho Jin

AU - Choi, Dong Sung

AU - Koo, Sung Hwan

AU - Han, Byungchan

AU - Kim, Sang Ouk

PY - 2018/5/4

Y1 - 2018/5/4

N2 - A cost effective hydrogen evolution reaction (HER) catalyst that does not use precious metallic elements is a crucial demand for environment-benign energy production. The family of earth-abundant transition metal compounds of nitrides, carbides, chalcogenides, and phosphides is one of the promising candidates for such a purpose, particularly in acidic conditions. However, its catalytic performance is still needed to be enhanced through novel material designs and crystalline engineering. Herein, a chemically and electronically coupled transition metal phosphosulfide/N-doped carbon nanotubes (NCNT) hybrid electrocatalyst is fabricated via a two-step synthesis. The uniquely designed synthesis leads to the material morphology featuring a core–shell structure, in which the crystalline metal phosphide core is surrounded by an amorphous phosphosulfide nanoshell. Notably, due to the favorable modification of chemical composition and surface properties, core–shell CoP@PS/NCNT exhibits the noticeable HER activity of approximately −80 mV @ −10 mA cm−2 with excellent durability, which is one of the highest active nonnoble metal electrocatalysts ever reported thus far.

AB - A cost effective hydrogen evolution reaction (HER) catalyst that does not use precious metallic elements is a crucial demand for environment-benign energy production. The family of earth-abundant transition metal compounds of nitrides, carbides, chalcogenides, and phosphides is one of the promising candidates for such a purpose, particularly in acidic conditions. However, its catalytic performance is still needed to be enhanced through novel material designs and crystalline engineering. Herein, a chemically and electronically coupled transition metal phosphosulfide/N-doped carbon nanotubes (NCNT) hybrid electrocatalyst is fabricated via a two-step synthesis. The uniquely designed synthesis leads to the material morphology featuring a core–shell structure, in which the crystalline metal phosphide core is surrounded by an amorphous phosphosulfide nanoshell. Notably, due to the favorable modification of chemical composition and surface properties, core–shell CoP@PS/NCNT exhibits the noticeable HER activity of approximately −80 mV @ −10 mA cm−2 with excellent durability, which is one of the highest active nonnoble metal electrocatalysts ever reported thus far.

UR - http://www.scopus.com/inward/record.url?scp=85040774635&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040774635&partnerID=8YFLogxK

U2 - 10.1002/aenm.201702806

DO - 10.1002/aenm.201702806

M3 - Article

AN - SCOPUS:85040774635

VL - 8

JO - Advanced Energy Materials

JF - Advanced Energy Materials

SN - 1614-6832

IS - 13

M1 - 1702806

ER -